When do groups perform better than individuals? A company takeover experiment
It is still an open question when groups perform better than individuals in intellectual tasks. We report that in a company takeover experiment, groups placed better bids than individuals and substantially reduced the winner’s curse. This improvement was mostly due to peer pressure over the minority opinion and to learning. Learning took place from interacting and negotiating consensus with others, not simply from observing their bids. When there was disagreement, what prevailed was not the best proposal but the one of the majority. Groups underperformed with respect to a “truth wins” benchmark although they outperformed individuals deciding in isolation.
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- Brit Grosskopf & Yoella Bereby-Meyer & Max Bazerman, 2007. "On the Robustness of the Winnerâ€™s Curse Phenomenon," Theory and Decision, Springer, vol. 63(4), pages 389-418, December.
- Reinhard Selten & Klaus Abbink & Ricarda Cox, 2005.
"Learning Direction Theory and the Winner’s Curse,"
Springer;Economic Science Association, vol. 8(1), pages 5-20, April.
- Ball, Sheryl B. & Bazerman, Max H. & Carroll, John S., 1991. "An evaluation of learning in the bilateral winner's curse," Organizational Behavior and Human Decision Processes, Elsevier, vol. 48(1), pages 1-22, February.
- Holt, Charles A & Sherman, Roger, 1994. "The Loser's Curse," American Economic Review, American Economic Association, vol. 84(3), pages 642-652, June.
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